Electrical switch



FIG. 1 is a front, bottom and right side perspective view of the design.

FIG. 2 is a front view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

In all of the views, the dotted lines are for environmental purposes only and form no part of the claimed design. The rear is not part of the claimed design. 

The ornamental design for an electrical switch, as shown and described. 